how to override data mapper object from commercewebservices extension.

[perireddy]

Generated occ extension with yocc template, I can see all ootb apis working fine, when customized any controller unable to use data mapper object from commercewebservices extension which already defined. please assist.

when I try to convert object from data to dto in custom controller mapping context object returning zero filters and giving response all attributes. when I try to call ootb api filters are returning one that fieldselectionstatefy.